Sebastian Aho was born on July 26, 1997 in Rauma, Finland. A stand out for Oulun Karpat in his homeland, Aho was selected in the second round of the 2015 NHL Entry Draft by the Carolina Hurricanes.

Aho would make his NHL debut during the 2016-17 season, appearing in all 82 games for the Hurricanes. His 24 goals were third most of all first-year players and he added 25 assists for 49 points. On January 31, 2017 Aho became the youngest player in the Hurricanes franchise history to record a hat trick when he scored three times versus the Philadelphia Flyers.